Q. If the output of a logic gate is 0 when all its inputs are at logic 1, then the gate is either
A) NAND or Ex-NOR
B) NOR or OR
C) Ex-OR or NOR
D) AND or NOR
Explanation
(a) If $A = 1,\ B = 1$ and $Y = 0$, the gate can be NOR gate, NAND gate or exclusive NOR gate ($ie$, XOR gate).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.